import Vue from 'vue'
import Router from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Goods from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import List from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'
import TreeTable from 'vue-table-with-tree-grid'
Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
      path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users },
        { path: '/rights', component: Rights },
        { path: '/roles', component: Roles },     
        { path: '/categories', component: Goods },     
        { path: '/params', component: Params },     
        { path: '/goods', component: List },     
        { path: '/goods/add', component: Add },     
        { path: '/orders', component: Order },     
        { path: '/reports', component: Report },     
        
      ]
    }
  ]
})

//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  //to将要访问的路径
  //from 代表从哪个路径跳转而来
  //next是一个函数，表示放行
  //  (方式1: next() 放行  2: next('地址') 强制跳转)
  if (to.path === '/login') return next()
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})
export default router
